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Investigation of Cracks in Cylindrical Spun-Cast Concrete Piles in a Marine Environment
| 题名： | Investigation of Cracks in Cylindrical Spun-Cast Concrete Piles in a Marine Environment |
| 作者： | R. Richard Aveni David J. Mukai |
| 关键词： | Concrete piles, Raymond piles, roller compacted concrete, cylindrical piles, spun-cast piles, cracks, maintenance, inspection |
| 摘要： | The damage in DOTD’s inventory of 54-inch cylindrical piles in marine environments has been catalogued. All the 54-inch pilings accessible via boat, with the exception of those located on 1-55, have been inspected on the surface. The cracking was not extensive and even the worst cracks were not in need of immediate remediation. The most extensive cracking was further investigated with help from a Federal Highway Administration demonstration boat. This boat was used to conduct underwater inspections on I-10 between Ramah and Whiskey Bay, (Ml I-IO over the reserve relief canal, and on the Twin Spans between New Orleans and Slidell. Underwater pictures and video were taken on the Ramah to Whiskey Bay span and on the Reserve Relief span. Halfcell corrosion potential measurements were also taken at the Reserve Relief location. In general the damage uncovered during this investigation was found to be minor and only warrants monitoring. Therefore, in lieu of remediation guidelines, we have come up with revised inspection activities to be carried out during underwater inspections. An extensive literature review, discussions with DOTs that possess marine environments, and discussions with a cylindrical pile did not definitively identify die cause of the cracks being investigated in this study. A number of theories abound, the most likely being that the significant cracks are due to overdriving the piles during installation. |
| 报告类型： | 科技报告 |
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